438157516 has 6 divisors (see below), whose sum is σ = 766775660. Its totient is φ = 219078756.

The previous prime is 438157513. The next prime is 438157553. The reversal of 438157516 is 615751834.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (438157513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54769686 + ... + 54769693.

Almost surely, 2^438157516 is an apocalyptic number.

It is an amenable number.

438157516 is a deficient number, since it is larger than the sum of its proper divisors (328618144).

438157516 is a wasteful number, since it uses less digits than its factorization.

438157516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109539383 (or 109539381 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 438157516 is about 20932.2124009862. The cubic root of 438157516 is about 759.5273584813.

The spelling of 438157516 in words is "four hundred thirty-eight million, one hundred fifty-seven thousand, five hundred sixteen".